| 摘要 |
In the present invention, the handling of an epicyclic gear is easy, a space at which a bearing provided with the size necessary to support the epicyclic gear is disposed can be reliably secured, and increased compactness of the overall epicyclic reduction gear can be further promoted. At the sides in the axial direction of a first and second epicyclic gear, the present invention has a first and second carrier member (28, 30) that synchronize the rotational components of the first and second epicyclic gear (16, 18). The first and second epicyclic gear (16, 18) have: a main body (90, 92) that contains teeth (86, 88) and that is supported by an eccentric body shaft (24) with a first and second roller bearing (40, 42) therebetween; and a protrusion (94, 96) that protrudes to only one side in the axial direction at the inner peripheral edge of the bearing hole (100, 102) at which the first and second roller bearing (40, 42) are disposed. The protrusions (94, 96) and the first and second carrier members (28, 30) overlap by ?1 and ?2 when seen from the diametral direction of the first and second epicyclic gears (16, 18). |
